The proposed Purple Line would require deforestation of areas around the Capital Crescent Trail, which are also reportedly habitats of several species of endangered amphipods.
A lawsuit to block the Purple Line says construction would destroy the habitat of an endangered shrimp-like species.
The Friends of the Capital Crescent Trail has filed a lawsuit alleging the Purple Line could severely harm the local ecosystem. Ajay Bhatt is president of the group.
“We want the federal government to come clean about all of the environmental impacts that the Purple Line will cause on this 25-acre park," Bhatt says.
The suit says not enough has been done to determine the project’s impact on shrimp-like creatures known as amphipods. It asks the federal government to find alternatives to the Purple Line route between Bethesda and Silver Spring.
“We're not trying to block the Purple Line. We're trying to preserve this park," Bhatt says.
Maryland officials say construction could begin in 2015.